# 定义一个学生类
class Student:
    name = 'Rose'
    age = 20

    def study(self):
        print(self.name, 'good good study...')


# Student stu = new Student();
# 实例化一个学生对象
stu = Student()
print(stu.name)
print(stu.age)
stu.study()


# 实例化一个学生对象
stu2 = Student()
print(stu2.name)
print(stu2.age)
stu.study()
